Page 14 - Demo

CHUCK + DRIVE SHAFT
The chuck and drive shaft consists of the following parts:
Chuck housing internal chuck chuck cover threaded chuck chuck chuck ring ring thrust bearing flat washer clamping jaws chuck chuck chuck body drive shaft shaft circlip bearing bearing cover cover gearbox to chuck chuck clip clip bearing bearing balls drive shaft shaft and cover cover insert CHUCK BODY
The chuck body (figure 13) is the the the the main piece of of steel in in in in the the the the the front of of the the the the the drill It It holds the the the the the clamping jaws in in in in and facilitates their movement It It also attaches to to to the the the the the drive shaft to to to provide the the the the the turning motion to to to to the the the the the front of the the the the the drill It is made from low carbon steel and could be either custom made or off the shelf DRIVE SHAFT
The drive shaft (figure 15) is the the the piece that connects the the the the the gearbox to to the the the the the chuck body It has a a a a a a a a a a a planetary gear gear gear hub on on on the the the the the the rear side to to to to attach the the the the the the steel gears to to to to and a a a a a a a a a a a thread on on the the the the the other to to to to screw to to to to the the the the chuck body This would would most likely be a a a a a a custom part except for the the the the pins which would would be off the the the the the shelf and installed in in in in the the the the the same way as the the the the planetary gear hub The main body o of the the the the drive shaft however would would be be custom made This piece would would be be be milled and cost around $1 50 (estimated by an an industry expert) This is is is is because while it it is is is is rather big it it is is is is a a a a a a a considerably simpler piece than something like the the chuck body As stated with the the the chuck body these pieces could be an off the the the the shelf component as as as part o of a a a a a a a a full chuck assembly However assuming they they are are custom made made for the the the drill they they are are made made from low carbon steel They would be milled and cost around $0 50 each (estimated by an an industry expert) While they are quite quite small the the the geometry is quite quite complex and that drives up the the the price Figure 14 — Clamping jaws (Jack Drapier 2016)
However if it it was purchased purchased off the the the shelf the the the entire chuck would have been the the the the unit purchased purchased Therefore for for the the purpose of this this assignment it it was was judged that this this was was custom made In which which case it would would have have been milled which which would would have have cost around $2 50 to to produce due to to the the complexity and size of the the part (estimated by an an industry expert) Figure 13 — Chuck body (Jack Drapier 2016)
CLAMPING JAWS
These clamping jaws (figure 14) are are situated triangularly in in in in the the chuck chuck body — and and are are pushed inwards and and and forwards by rotating the the the the chuck chuck These are the the the the pieces that grip the the the the drill drill bit and and facilitate the the drilling 13 Figure 15 — Drive shaft (Jack Drapier 2016)